“…Synthesis revealed consistency among studies in the overall operationalisation of NPT. Across all included studies, NPT is most commonly first operationalised during the data collection stage (52%, n = 22) [ 36 , 69 – 71 , 73 , 74 , 76 – 78 , 87 , 88 , 92 , 93 , 96 , 97 , 104 , 105 , 107 , 109 , 110 , 112 – 114 ], followed by data analysis (36%, n = 15) [ 68 , 72 , 75 , 79 , 80 , 85 , 86 , 94 , 95 , 98 , 100 , 103 , 106 , 108 , 111 ] and finally, from the outset of the design (12%, n = 5) [ 81 – 84 , 89 – 91 , 99 , 102 ]. However, this should be interpreted with caution as it refers to the stage NPT is first deployed for each study and does not include subsequent utilisation.…”